6-K

UNITED STATES

SECURITIES AND EXCHANGECOMMISSION

WASHINGTON, DC 20549

FORM 6-K

REPORT OF FOREIGNPRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

OF THE SECURITIES EXCHANGEACT OF 1934

For the month of October 2024

Commission File Number: 001-41782

VinFast Auto Ltd.

Dinh Vu – CatHai Economic Zone

Cat Hai Islands, CatHai Town, Cat Hai District

Hai Phong City, Vietnam

(Address of principalexecutive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.    Form 20-F  x   Form 40-F  ¨

INFORMATIONCONTAINED IN THIS REPORT ON FORM 6-K

On October 11, 2024, VinFast Auto Ltd. announced its delivery results in Vietnam for September 2024. A copy of that press release is furnished as Exhibit 99.1 to this Report on Form 6-K.

This Form 6-K shall be deemed to be incorporated by reference into the registration statement on Form S-8 (File No. 333-278251) of VinFast Auto Ltd. (including any prospectuses forming a part of such registration statement) and to be a part thereof from the date on which this report is furnished, to the extent not superseded by documents or reports subsequently filed or furnished.

EXHIBIT INDEX

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Exhibit 99.1

VINFAST CLAIMS TOP SPOT IN VIETNAM’S PASSENGERCAR MARKET IN SEPTEMBER

Hanoi,October 11, 2024 - VinFast Auto Ltd. (“VinFast”), a Vietnamese pure-play electric vehicle (“EV”)manufacturer, announced that it delivered over 9,300 EVs to domestic customers in September, outpacing the second-best competitor by amargin of nearly 50%, firmly positioning VinFast as the top-selling car brand in Vietnam for September. This figure also marks the firsttime a pure-play EV company seized the lead in Vietnam’s passenger car market, a significant milestone for the domestic Vietnameseautomotive industry.

VinFast delivered over 9,300 EVs in Vietnam in September, across all vehicle models including the VF e34, VF 3, VF 5, VF 6, VF 7, VF 8 and VF 9. This event marks a notable accomplishment in Vietnam’s green transition, as it now joins a short list of countries in which market sales are led by a pure-play EV company.

VinFast’s highest monthly deliveries to date in Vietnam also represents a historic milestone for the domestic Vietnamese automotive industry. For the first time, a Vietnamese EV brand has outperformed all international competitors to become the market leader. This remarkable achievement comes just over two years after VinFast’s full transition to becoming a pure-play EV company.

Mr. VuAnh Tuan, CEO of VinFast Vietnam, shared: "We extend our heartfelt gratitude to our valued customers and dealers. Theirtrust, support, and partnership have been instrumental in propelling VinFast to this unprecedented achievement. With their continued enthusiasm,we are confident in solidifying VinFast's position as the leading automotive brand in Vietnam in 2024."

VinFast’s “Fierce Vietnamese Spirit – For a Green Future” initiative has garnered universal support from individuals and businesses in Vietnam thanks to its strong emphasis on social responsibility. Beyond its contribution to reducing urban pollution, the program serves as an inspiration for Vietnamese businesses to come together and make a positive impact on society.